I uploaded a new chapter to the Genealogical Guide on Ethnic Histories or more exactly a list of links to find those histories. A few older ones have been digitized but for the most part you will have to find the books in a library near you.
Germans are well represented and Kathleen Urbanic’s book on the the Ukrainian community well details those immigrants. There is a chapter in one book on the Irish that came to the Rochester area but why isn’t there a full book on the Irish immigrants to Monroe County?
Originally I thought that I would have the Genealogical Guide completed by the first of the year but I fell way behind. I’ll try to finish as soon as possible. Meanwhile check out chapters that are completed on the Genealogical Guide web page.